National Dam Inspection Program. PA-479 Dam (NDI ID Number PA-509, DER ID Number 63-71), Ohio River Basin, Harmon Creek, Washington County, Pennsylvania. Phase I Inspection Report.
Abstract
The PA-479 dam is one of the 14 flood control projects in the Harmon Creek watershed. The dam consists of an earth embankment approximately 650 feet long with a maximum height of 63 feet from the downstream toe and a crest width of 14 feet. The flood discharge facilities for the dam consist of a drop inlet primary spillway located near the left abutment (looking downstream) and an emergency spillway, also located on the left abutment. Based on the evaluation of the conditions as they existed on the dates of inspection and as revealed by visual observations, the condition of PA-479 dam is assessed to be good. The spillway capacity is classified as adequate according to the recommended criteria.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1979
- Accession Number
- ADA070720